Metal-planing machine



. 1 631,132 June 1927' c. a. JOHANNESMEYER METAL PLANING MACHINE FiledJuly 20. 1925 Charles G. Johannesmeyer Patented June 7, 1927.

UNITED STATES PATENT .oFFicE.

CHARLES G. J Z-IANNESMEYER, OF GLENDALE, OHIO, ASSIGNOR TO THE LIBERTYMACHINE TOOL COMPANY, OF HAMILTON, OHIO, A CORPORATION OF OHIO.

METAL-PLANING MACHINE.

Application filed July 20, 192-5. Serial No. 44,771.

secured to the respective heads, whereby it usually is inconvenient foran operator to grasp the lever for positioning the slides, as when theheads are in an inaccessible position on the cross rail whereby when theslide mechanism control levers are secured to the respective left andright or a plurality of heads it is necessary for an operator to shifthis position from one head to another when it is desired to impartvertical movement and properly position the respective tools relativetothe work through actuation of the slide. The rotatable screws beingrotatably mounted are relatively loosely connected, thereby affordingconsiderably less stability to the tool than when the screws arestationary. It is especially advantageous to provide the tool withconsiderable stability whereby the finished product may be free fromindentations and rugged surface, as well as materially reducing the costof manufacturing ahighly efficient article for thereason that anoperator of the machine is enabled to take heavy cuts, at high speed,from the work without the likelihood of damaging the machinery or workcaused by excessive vibration developed by chattering of the tool andwithout the likelihood of breaking the tool.

The objects of my invention are to provide simple, efiicient, economicaland practical means for elevating and lowering the slides of a metalplaning machine; to provide means adapted to increase the stability andreduce the vibration of the slides vertical movement and supportingmechanism thereby considerably reducing the liklihood of chattering ofthe respective tools when a heavy cut is bein taken from the work;

to provide means adapted to eliminate and simplify considerable portionof the usual mechanism for elevating and lowering the slides of a metalplaning machine; to provide means adapted to permit the elimination ofloosely mounted and rotatable .crews, respectively, connected with theslides of a metal planer and to substitute therefor respectivestationary screws; to provide means adapted to simplify the manualoperative controls of said slides elevating and lowering means, wherebythe operator of said controls may stand in one position andcoutrol theslide vertical movement mechanism of a plurality of cross rail heads.

My invention consists in providing a sta tionary vertical screwconnected with each slide of a metal planing machine; in providingmechanism capable of operative connection with. the driving shaft andthe re spective screws and in positioning the slide movement controllinglevers in close relation to each other, irrespective of the position ofthe respective heads.

My invention further consists in the construction, combination andarrangement of parts, as herein set forth and claimed.

In the drawings:

Fig. 1 is a front elevation of the cross rail and all heads of a metalplaning machine having my invention embodied therein and showing thehead partly broken away, with parts in dotted lines and parts insection; s

Fig. 2 is a section taken on a line corresponding to 2-2 in Fig. 1; andi Fig. 3 sponding to 3-3 in Fig. 2.

In the preferred construction of my invention I provide stationaryscrews 1, respectively, secured to slides 2, respectiimly. of heads 3suitably and slidably mounted on a usual cross rail 4- of a metalplaning machine. Screws 1, respectively, have threaded upper ends 5projecting through webs 6, respectively, integral with thetops of slides2. Nuts 7, respectively, threaded is a section taken on a line corretothe upper ends 5, respectively, of screws 1 are adapted to draw collars8, respectively, integral. with the screws, in close engagement withthelower sides, respectively, of webs 6.. whereby the screws aremaintained, in fixer position relative to the respective slides.

Nuts 9, respectively threaded to screws 1, respectively, have nut gears10 integral therewith. The not gears 10, respectively, are in permanentmeshii'ig engagement with gears 11 fixed to driven shafts 12, respeetively, rotatably mounted in bearings 13, respectively, in saddles 14slidably mounted on cross rail 4 as by recesses 15 and 16, respectively, in each saddle receiving longitudinal projection 17 and 1Sintegral with the cross rail. The saddles are maintained in slidableposition on the cross rail by usual means and comprising longitudinalplates 19, fixed to saddles 14, respectively, and in bearing engagementwith shoulders 20 respectively of the cross rail 4.

Longitudinal shafts 21, respectively, have ends 22 and 23, respectively.mounted in bearings 24 and 25, respectively, in ends 26 and 27 of crossrail 4. Hand levers 28, respectively, fixed to ends 23, respectively, oflongitudinal shafts 21, are for the purpose of providing convenientmeans for manually rocking or rotating the shafts for reasonshereinafter fully explained. Threaded tubes or members 29. respectively,splined to shafts 21, respectively, are received in holes 30,respectively, in blocks 31, respectively, integral with saddles 14. Thetubes are maintained against longitudinal movement relative to theblocks as by integral collars 32 respectively, being drawn in closeengagement with sides respectively of the blocks, by nuts 34,respectively, screwed in engagement with sides 3 of the blocks. Pushnuts 36, respectively, threaded to ends 37, respectively, of tubes 29,have integral forks 38, respectively. reeevied in circumferentialgrooves 39, respectively in collars 4O slidably keyed to driving shaft41 having its ends 42 and. 43 respectively, journalcd in ends 26 and 27of cross rail 4.

It will be understood that the mechanism hereinafter explained issimilar in operations and. construction for both the left and the rightrail heads, whereby explanation of a single head will suflice for both.

Integral with collar 40 is tubular shank 44 slidably keyed to drivingshaft 41 and journaled in block 31. Gear fixed to end 46 of tubularshank 44 is adapted to he slid into and out of meshing engagement withgear 47 fixed to driving shaft 41, whereby rotary movement of thedriving shaft imparts rotary movement to nut 51 rotatably secured to thesaddle against vertical movement as by integral nut gear 10 engaging thelower side of web 48 (integral with the saddle) and by nut 49 threadedto the upper external portion of nut 9 and screwed in engagement withthe upper side of web 48.

Suitable means are provided for imparting rotary movement to drivingshaft 41, as by an electric motor (not shown) having operativeconnection with gear 50 fixed to projecting end 51 of the driving shaft.

Usual rotatable screws 52 and 53, respectively, are threaded to blocks3]., respectively, integral with the heads, whereby horizontal movementis imparted to the heads.

The mechanical operations of my invention are as follows:

Assume suitable means are provided for imparting rotary movement todriving shaft 41 and that the mechanism is positioned, as shown in Fi 1,wherein gear 45 is shown disengaged from driven shaft gear 47.

Hand lever 28 is manually operated for partially rotating or rockinglongitudinal shaft 21 whereby threaded tube 32 is caused to rotatesulficiently to impart longitudinal movement to push nut 36 through thequick lead threaded connection of the nut with end 37 of tube 32,whereby through en gagement of integral fork 38 of push nut 37 withcollar 40, driving shaft gear 45 is slid longitudinally on driving shaft41 and into meshing engagement with gear 4'? fixed to driven shaft 12-jonrnaled in saddle 14. Meshing engagement of driving shaft gear 45 withdriven shaft gear 47 imparts rotary movement to driven shaft gear 11which is in contiuous mesh with nut gear 10 integral with nut 9 threadedto' stationary screw 1, whereby vertical movement is imparted to slide2. The direction of the vertical movement imparted to the slide isdependent upon the directional rotation of driving shaft 41 which iscontrolled by the directional rotation of the originalsource of powercon'nnunicated to the shaft, which in this case, as heretoforeexplained,is derived from asuitably positioned electric motor. Vi hcn slide 2 isproperly positioned relative to head 3, lever 28 is manually operatedand gear is disengaged from meshing engagement with gi'iar 4 therebydisconnecting the source of power from nut 9 threaded to stationaryscrew 1.

It is apparent that I have invented'simple, ellicient and practicalmeans whereby the slide is adapted to be elevated and lowered relativeto the head of a metal planing machine. The herein described mechanicalconnections of vertical stationary,

screws 1 are especially advantageous for the reason that acoir-i=iderable portion of the mechanism of a usual metal planingmachine is eliminated, as well as providing consider ably more stabilityto the usual tool (not shown) fixed-in. a usual clapper box (not shown)secured to the slide. The substitution of stationary screws for theusual rosee CH I

t-atably -mounted and loosely connected screws materially adds to thesturdiness of construction and durability of a metal planing machine,for the reason that the stationary screws are adapted to resist theupward thrust of the slide when a heavy cutis being taken from the work.likelihood of chattering of the tool is re duced wherebythe work maybefinished with comparatively few high speed and deep cutting operationsand the work when finished has a smooth surface possessing a high glosswhich adds materially to the appearance and value of the finishedproduct. Greater stability of the cutting tool which permits cuts to betaken from the work without the disadvantage of the usual chatter of thetool clearly reduces the cost of manufacturing the product.

My invention also is capable of being operated quickly and elliciently,as the operator is not compelled to control the vertical movement of theslide by manually operative means fixed to the respective headsthemselves, but he may remain in one position and control the verticalmovement of the slides in both the left and right heads, whereas theusual metal planing machines are provided with slide vertical movementcontrolling means secured to the respective heads, thereby compelling anoperator to continuously change his position in accordance with theposition of the heads on the cross rail when it is desired to elevate orlower the slides, The inconvenient operations required in the usual typeof mechanism for elevating and lowering the slides often result ininel'licient and damaging operation of the metal planing machine as anoperator often will elevate or lower the cross rail itself for thepurpose of properly positioning the tool relative to the work, solelybecause of the fact that the controlling lever for elevating andlowering the cross rail is more convenient and accessible than thecontrolling levers for imparting vertical movement to theslides, andwhich sometimes effects serious damage to the metal planing machine, aswell as lowering the eilicient operation of the machine for the reasonthat when the tool is extended a considerable distance below the head itis impractical and sometimes impossible to take a heavy cut from thework because of vibration or chatterii g of the tool which is developed,due to a too great overhanging distance of the tool.

In rec'iuction to practice I have found that I tions and the uses of myinvention will vary considerably and I desire to emphasize theFurthermore, the

mvention resides in; the combination, ar-

rangement and location iot parts and m the fact that-while I have chosento illustrate the structures in which my invention may be incorporated.It is understood that'my details of construction, as hereinafterclaimed, and that changes in the precise embodiment of the invention canbe made within the scope of what is claimed Without departing from thespirit of the invention.

lVhat I claim as new and desire to secure by Letters Patent is:

1. In combination with a metal planing machine, a cross rail suitablymounted, a saddle slidably mounted on said cross rail, a slide slidablymounted on said saddle, a longitudinal shaft mounted on said cross rail,a manually operative lever fixed to said shaft, a stationary screw linedto said slide, a nutv gear threaded to said screw and r0tatably mountedin said saddle and secured against vertical movement therein, a threadedmember fixed to said longitudinal shaft, a nut threaded to said threadedmember, a driving shaftrotatably mounted in said cross rail, means forrotating said driving shaft, a gear keyed to said driving shaft andadapted to operatwely connect with said nut gear whereby operation ofsaid manually operative lever is-adapted to mesh said driving shaft gearwith said nut gear for elevating and lowering said slide relative tosaid saddle.

2. In combination with a metal planing machine, a cross rail slidablymounted, a head mounted on said cross rail and com prising a saddle anda slide slidably mounted thereon, a'stationary screw fixed to said"threaded member, a driving shaft mounted v in said cross rail, meansslidably mounted on said driving shaft and having operative connectionwith said push nut, a driving shaft gear keyed to said driving shaft andfixed to said means, a driven shaft mounted in said saddle, a drivengear fixed to each end of said driven shaft. and, respectively, capableof meshing with said driving shaft gear and in permanent mesh with saidnut gear, whereby manual operation of said lever is adapted to mesh saiddriving shaft gear with one of said driven shaft gears for elevating andlowering said slide on said saddle.

3. In combination with a metal planing machme, a cross rail sultablymounted, a

'cross rail, a manually operative hand lever fixed to said longitudinalshaft and means on said longitudinal shaft operatively conneoted withsaid slidably mounted means whereby operation of said lever is adaptedto operatively connect said slidably mounted means with said nut gearfor elevating and lowering said slide.

CHARLES G. J OHAN N ESMEYER.

